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Infrared detector assembly with integrated temperature sensing, gas measurement apparatus and method

A technology of infrared detectors and components, applied in the field of infrared detectors, to achieve the effect of eliminating detector drift and accurate measurement

Pending Publication Date: 2020-05-15
KONINKLJIJKE PHILIPS NV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Unfortunately, this arrangement introduces a large thermal gradient and associated large thermal lag time between the thermistor sensor and the film temperature of the lead selenide flat panel detector

Method used

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  • Infrared detector assembly with integrated temperature sensing, gas measurement apparatus and method
  • Infrared detector assembly with integrated temperature sensing, gas measurement apparatus and method
  • Infrared detector assembly with integrated temperature sensing, gas measurement apparatus and method

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Embodiment Construction

[0038] Embodiments of the disclosure and its various features and advantageous details are explained more fully with reference to the non-limiting examples described and / or illustrated in the drawings and detailed in the following description. It should be noted that the features shown in the figures are not necessarily drawn to scale and, as the skilled artisan will recognize, features of one embodiment may be used with other embodiments even if not explicitly stated herein. Descriptions of well-known components and processing techniques may be omitted so as not to unnecessarily obscure the embodiments of the present disclosure. The examples used herein are intended only to facilitate an understanding of the manner in which embodiments of the invention may be practiced and to further enable those skilled in the art to practice the embodiments of the invention. Accordingly, the examples herein should not be construed as limiting the scope of embodiments of the present disclosu...

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Abstract

A method of making an infrared detector assembly (10) with integrated temperature sensing comprises forming at least one IR sensitive element (12,14) on a substrate (16), and forming conductive electrode pads (22,24,26,28,30,32) for (a) an IR sensitive element and (b) at least one thermistor (34) on the substrate. The conductive electrode pads and the IR sensitive element are in a centerline symmetrical configuration in which the conductive electrode pads and the IR sensitive element, taken together, are centerline symmetrical about at least one axis (36,38) in a plane of the infrared detectorassembly, wherein the centerline symmetrical configuration is operable to reduce a thermal lag time between a temperature of the at least one thermistor and a temperature of the IR sensitive elementduring temperature transients. Each of first and second thermistor conductive electrode pads (30,32) has two pad end portions (40,42) spaced from each other and joined via a pad mid-portion (44) thatcomprises a thermal loss reduction member.

Description

technical field [0001] The present embodiments relate generally to infrared detectors, and more particularly to an infrared detector with integrated temperature sensing, a gas measuring device having such an infrared detector, a method of measuring gas concentration, and a A method of making the infrared detector. Background technique [0002] Lead selenide detectors used to detect mid-range infrared energy are sensitive to changes in ambient temperature. As the ambient temperature of the detector drifts, the responsiveness of the detector also drifts. Therefore, applications using lead selenide detectors must be thermally adjusted or mathematically compensated for drift in sensitivity. Methods of doing this require close thermal coupling to the substrate of the lead selenide detector, and are typically done with a thermistor mounted externally to the lead selenide detector. However, this method disadvantageously infers the temperature of lead selenide based on the measur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/3504G01J5/20
CPCA61B5/082A61B5/0836G01N21/3504G01J5/20G01N33/0062G01J5/06G01J1/4228G01J2001/444G01J2001/1673G01J1/1626G01J5/064
Inventor D·斯坎波利C·查科
Owner KONINKLJIJKE PHILIPS NV
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